Nodemailer from 3.0.0 before 10.0.10 contains a quadratic complexity denial of service vulnerability in the SMTP client reply parser in SMTPConnection._onData and isPartialResponse. A malicious SMTP server or on-path attacker can stream continuation lines without a completion line before authentication, blocking the Node.js event loop and exhausting memory.
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 14 Oct 2026 23:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Nodemailer from 3.0.0 before 10.0.10 contains a quadratic complexity denial of service vulnerability in the SMTP client reply parser in SMTPConnection._onData and isPartialResponse. A malicious SMTP server or on-path attacker can stream continuation lines without a completion line before authentication, blocking the Node.js event loop and exhausting memory. | |
| Title | Nodemailer 3.0.0 before 10.0.10 Denial of Service via SMTP Reply Parsing | |
| First Time appeared |
Nodemailer
Nodemailer nodemailer |
|
| Weaknesses | CWE-400 | |
| CPEs | cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Nodemailer
Nodemailer nodemailer |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-14T22:53:00.625Z
Reserved: 2026-10-14T22:21:21.397Z
Link: CVE-2026-110872
No data.
Status : Received
Published: 2026-10-14T23:17:29.097
Modified: 2026-10-14T23:17:29.097
Link: CVE-2026-110872
No data.
OpenCVE Enrichment
No data.
Weaknesses